计算:(1)26+(-14)+(-16)+8(2)(-5.5)+(-3.2)-(-2.5)-4.8(3)(-8)×(-25)×(-0.02)
计算:(1)26+(-14)+(-16)+8(2)(-5.5)+(-3.2)-(-2.5)-4.8(3)(-8)×(-25)×(-0.02)(4)(12?59+56?71...
计算:(1)26+(-14)+(-16)+8(2)(-5.5)+(-3.2)-(-2.5)-4.8(3)(-8)×(-25)×(-0.02)(4)(12?59+56?712)×(-36)(5)(-1)÷(13?12)(6)25×34+(-25)×12+25×(-14)(7)158÷(?10)×(?103)÷(?154)(8)991718×(?9).
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(1)原式=26+8-14-16
=34-30
=4;
(2)原式=-5.5-3.2+2.5-4.8
=-5.5+2.5-4.8-3.2
=-3-8
=-11;
(3)原式=-8×25×0.02
=-4;
(4)原式=
×(-36)-
×(-36)+
×(-36)-
×(-36)
=-18+20-30+21
=-48+41
=-7;
(5)原式=(-1)×(-6)
=6;
(6)原式=25×(
-
-
)
=25×0
=0;
(7)原式=-
×
×
×
=-
;
(8)原式=100×(-9)-
×(-9)
=-900+
=-899
.
收起
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